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ssh-audit
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Added 2 key exchanges (ecdh-sha2-1.3.132.0.10, curve448-sha512), 1 host key type (ecdsa-sha2-1.3.132.0.10), and 2 MACs (hmac-sha2-256-96-etm@openssh.com, hmac-sha2-512-96-etm@openssh.com).

This commit is contained in:
Joe Testa 2019-09-19 22:19:26 -04:00
parent 14af53cf04
commit 8c5493ae3e
2 changed files with 10 additions and 1 deletions
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4
README.md
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@ -44,7 +44,9 @@ usage: ssh-audit.py [-1246pbnvlt] <host>
## ChangeLog
### v2.1.0 (???)
- Fixed crash while scanning Solaris Sun_SSH.
- Added 2 new key exchanges: `gss-group1-sha1-toWM5Slw5Ew8Mqkay+al2g==`, `diffie-hellman-group15-sha256`.
- Added 5 new key exchanges: `gss-group1-sha1-toWM5Slw5Ew8Mqkay+al2g==`, `diffie-hellman-group15-sha256`, `ecdh-sha2-1.3.132.0.10`, `curve448-sha512`.
- Added 1 new host key type: `ecdsa-sha2-1.3.132.0.10`.
- Added 2 new MACs: `hmac-sha2-256-96-etm@openssh.com`, `hmac-sha2-512-96-etm@openssh.com`.
### v2.0.0 (2019-08-29)
- Forked from https://github.com/arthepsy/ssh-audit (development was stalled, and developer went MIA).

7
ssh-audit.py
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@ -312,6 +312,7 @@ class SSH2(object): # pylint: disable=too-few-public-methods
WARN_CIPHER_WEAK = 'using weak cipher'
WARN_ENCRYPT_AND_MAC = 'using encrypt-and-MAC mode'
WARN_TAG_SIZE = 'using small 64-bit tag size'
WARN_TAG_SIZE_96 = 'using small 96-bit tag size'
WARN_EXPERIMENTAL = 'using experimental algorithm'
ALGORITHMS = {
@ -334,8 +335,10 @@ class SSH2(object): # pylint: disable=too-few-public-methods
'ecdh-sha2-nistp256': [['5.7,d2013.62,l10.6.0'], [WARN_CURVES_WEAK]],
'ecdh-sha2-nistp384': [['5.7,d2013.62'], [WARN_CURVES_WEAK]],
'ecdh-sha2-nistp521': [['5.7,d2013.62'], [WARN_CURVES_WEAK]],
'ecdh-sha2-1.3.132.0.10': [[]], # ECDH over secp256k1 (i.e.: the Bitcoin curve)
'curve25519-sha256@libssh.org': [['6.5,d2013.62,l10.6.0']],
'curve25519-sha256': [['7.4']],
'curve448-sha512': [[]],
'kexguess2@matt.ucc.asn.au': [['d2013.57']],
'rsa1024-sha1': [[], [], [WARN_MODULUS_SIZE, WARN_HASH_WEAK]],
'rsa2048-sha256': [[]],
@ -359,6 +362,7 @@ class SSH2(object): # pylint: disable=too-few-public-methods
'ecdsa-sha2-nistp384-cert-v01@openssh.com': [['5.7'], [WARN_CURVES_WEAK], [WARN_RNDSIG_KEY]],
'ecdsa-sha2-nistp521-cert-v01@openssh.com': [['5.7'], [WARN_CURVES_WEAK], [WARN_RNDSIG_KEY]],
'ssh-rsa-sha256@ssh.com': [[]],
'ecdsa-sha2-1.3.132.0.10': [[], [], [WARN_RNDSIG_KEY]], # ECDSA over secp256k1 (i.e.: the Bitcoin curve)
},
'enc': {
'none': [['1.2.2,d2013.56,l10.2'], [FAIL_PLAINTEXT]],
@ -410,6 +414,7 @@ class SSH2(object): # pylint: disable=too-few-public-methods
'hmac-sha2-384': [[], [], [WARN_ENCRYPT_AND_MAC]],
'hmac-sha2-512': [['5.9,d2013.56,l10.7.0'], [], [WARN_ENCRYPT_AND_MAC]],
'hmac-sha2-512-96': [['5.9', '6.0'], [FAIL_OPENSSH61_REMOVE], [WARN_ENCRYPT_AND_MAC]],
'hmac-sha2-256-96-etm@openssh.com': [[]],
'hmac-sha3-256': [[], [], [WARN_ENCRYPT_AND_MAC]],
'hmac-sha3-384': [[], [], [WARN_ENCRYPT_AND_MAC]],
'hmac-sha3-512': [[], [], [WARN_ENCRYPT_AND_MAC]],
@ -425,6 +430,8 @@ class SSH2(object): # pylint: disable=too-few-public-methods
'umac-128@openssh.com': [['6.2'], [], [WARN_ENCRYPT_AND_MAC]],
'hmac-sha1-etm@openssh.com': [['6.2'], [], [WARN_HASH_WEAK]],
'hmac-sha1-96-etm@openssh.com': [['6.2', '6.6', None], [FAIL_OPENSSH67_UNSAFE], [WARN_HASH_WEAK]],
'hmac-sha2-256-96-etm@openssh.com': [[], [], [WARN_TAG_SIZE_96]], # Despite the @openssh.com tag, it doesn't appear that this was ever shipped with OpenSSH; it is only implemented in AsyncSSH (?).
'hmac-sha2-512-96-etm@openssh.com': [[], [], [WARN_TAG_SIZE_96]], # Despite the @openssh.com tag, it doesn't appear that this was ever shipped with OpenSSH; it is only implemented in AsyncSSH (?).
'hmac-sha2-256-etm@openssh.com': [['6.2']],
'hmac-sha2-512-etm@openssh.com': [['6.2']],
'hmac-md5-etm@openssh.com': [['6.2', '6.6', '7.1'], [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY, WARN_HASH_WEAK]],